1 files changed, 3 insertions, 0 deletions
diff --git a/lib/Lexer/Lexer.cc b/lib/Lexer/Lexer.cc
index 6854cc9..da2e47f 100644
--- a/lib/Lexer/Lexer.cc
+++ b/lib/Lexer/Lexer.cc
@@ -54,6 +54,9 @@ int Lexer::gettok() {
         if (IdentifierStr == "RETURN") return tok_return;
         if (IdentifierStr == "RETURNS") return tok_returns;
         if (IdentifierStr == "CALL") return tok_call;
+        
+        if (IdentifierStr == "BYREF") return tok_byref;
+        if (IdentifierStr == "BYVAL") return tok_byval;
 
         return tok_identifier;
     }